Pulp-distributer for concentrators.



W. E. DARROW.

PULP DISTRIBUTER FOR CONGENTRATORS.

APPLIOATION FILED JULY 2a, 1913.

1,1 04,969. Patented July 28, 1914 Z SHBETS-SHEET l.

R &

ou w, l

R IWWTOR v 1 b WITNESSES: WE Darrow BY wmwwkm Q 0 1%? Q63. Owdr/L THE NORRIS FET ERS CO, PHOTO-LITHO. WASHINGTON. D. C,

W. E. DARROW. PULP DISTRIBUTEB FOR GONOENTRATORS.

' APPLICATION FILED JULY 28, 1913'.

1,104,969. Patented July 28, 1914.

2 SHEETS-SHEET 2.

F1; 5i. 2v

E Q I INVENTOR. WITNESSES:

MEDarraw THE NORRIS PETERS C0,. PHOTO-LITHO WASHINGTON, D: C.

WILTON E. DARROW, OF SITTTER GREEK, CALIFORNIA.

PULP-DISTRIBUTER FOR CONCENTRATORS.

Specification of Letters Patent.

Patented July 28, 1914:.

Application filed July 28, 1913. Serial No. 781,552.

To all whom it may concern:

Be it known that I, WILTON E. DARROW, a citizen of the United States, residing at Sutter Creek, in the county of Ainador, State of California, have invented certain new and useful Improvements in Pulp-Distributers for Concentrators; and I do declare the following to be a clear, full, and exact description of the same, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying draw ings, and to the characters of reference marked thereon, which form a part of this application.

This invention relates 'to improvements in concentrators and particularly to a means for distributing pulp to the trays of that type of concentrator commonly known as the-rotary type, the object of the invention being to produce a distributer which will so distribute the pulp upon the trays as to cause it to keep in continuous motion and not to cake and thus form a stoppage or clog for the fiow of the same as now occasionally happens in the present use of this type of concentrator.

Also another aim of the invention isto so thoroughly distribute the pulp upon the trays as to permit of the highest efficiency in the concentrating operation.

A further object of the invention is to produce a simple and inexpensive device and yet one which will be exceedingly efi'ective for the purposes for which it is designed.

These objects, I accomplish by means of such structure and relative arrangement of the parts as will fully appear by a perusal of the following specification and claims.

On the drawings, similar characters of reference indicate corresponding parts in the several views.

Figure 1 is a top plan view, partly broken off at one side. Fig. 2 is a fragmentary portion of an elevation in section of the de vice showing the distributing means and a portion of the concentrating trays. Fig. 3 is a sectional view taken on a line X-X of Fig. 2.

Referring now more particularly to the characters of reference on the drawings, the numeral 1 designates the supporting standard for the device turnably mounted in which is a pin 2 having a vertical supporting rod 3 mounted on thelower end of which is a supporting frame 4' suitably braced to the rod 3 by brace rods 5.

On the outer edges of the frame 1 are vertical supporting members -6 having a plurality of pairs of spaced bolts 7 and S interposed between which are rods 9 having on their outer ends circumferentially disposed rods. 10.

On the rods 9 are bolted the feed boards 11 of the concentrator by means of U-bolts 12. The concentrating tables, decks or trays 13 are then projected underneath the feed boards 11 and rest on the rods 10, the entire means causing each of the parts to lock against its corresponding parts to hold the entire tray mechanism in its supporting memberfi. The pulp distributing means for these members 13 then is constructed substantially as follows, namely: 'On the upper end of the rod 3 is turnably mounted a sleeve 14 secured to a plate 15 having a bearing 16 mounted on ball bearings 17 011 the upper end of the rod 3. Secured to the plate 15 is an upwardly projecting supporting frame 18 carrying on its outer end a circumferentially disposed launder or sluice trough 19 provided with a plurality of holes 20 in its bottom, there being pipes 21 connected with each of the holes 20, said pipes 21 being each curved at its lower end as at 22, each curved portion projecting to and discharging on one of the tray structures 13. The plate 15 has an upwardly projecting sleeve 23 mounted on the upper end of which is a pulley 24L driven by a cable 25 for the purpose of revolving the launder 19.

The numeral 26 designates a pin projected into the top of the rod 3 and projecting through the members 16, 15, 23 and 2e and being provided on its upper end with a conical distributing member 27 having an upwardly projecting annular shoulder 28 disposed centrally thereon. This distribut ing member 27 is partly cut out as at 29 to form an open space to permit of the entrance of the cable 25 to make its connection with the pulley 24:. At the end of the open space 29 at the center of the member 27, I provide an upwardly projecting plate 30 supporting a cylindrical member 31 spaced from the member 28. This member 31 is the pulp receiving receptacle and the pulp when passing into the same is given a pressure which forces it equally through the space 32 between the member 31 and the member 28 thus causing it to spread equally upon the conical distributing member 27 except at the point shut off by the plate 30 at the open space 29. This distributing member 27 then equally distributes the pulp and discharges it equally into the launder 19 and with the rotation of said launder 19 this causes the pulp to pass through the pipes 21-22 and splash intermittently upon the diiierent ones of the feed boards 11 for the trays 13 thus providing a uniform distribution of the pulp to the trays 13 for the concentration of ,the'fine minerals.

The feed distribution of the pulp can be regulated by raising or lowering the member 31 away from or toward the member 28 and this is accomplished by a bolt 33 disposed through the member 30 and projecting through a vertical slot 34 in the said member 31 whereby the positlon of the member 31 on the bolt may be raised or lowered at will. I also provide the member 31 with a plurality of such slots 34 whereby other plates similar to the plate 30 may be mounted thereon to shut off a part of the distributing space 32 if it is desired to do so when a lesser number of vertical sections of trays are to be distributed to.

The trays 13 will be revolved slowly in the opposite direction to the movement of the pipes 2122 by means of a cable 35 driving a pulley 36 on the frame a or other similar suitable structure.

As can readily be seen from the foregoing description I have an adjustable pulp distributor for concentrators by means of which the object of the invention is accomplished, namely, to distribute the pulp continuously to any desired number of vertical sections of trays. The advantage of this has been pointed out, namely, to give a more even distribution without any danger of clogging or stoppage.

From the foregoing description it will be readily seen that I have produced such a device as substantially fulfils the objects of the invention as set forth herein.

While this specification sets forth in detail the present and preferred construction of the device, still in practice, such deviations from such detail may be resorted to as do not form a departure from the spirit of the invention.

Having thus described my invention what I claim as new and useful and desire to secure by Letters Patent is:

l. A device of the character described comprising a distributing member, a receptacle spaced from said distributing member and adapted to discharge thereon, a plate on said distributing member supporting said receptacle, said plate being adapted to shut oft a portion of the discharge from said receptacle upon said distributing member, as described.

2. A device of the character described comprising a distributing member having an opening at one point, a receptacle spaced from said distributing member and adapted to discharge thereon, a plate on said distributing member supporting said receptacle, said plate being adjacent said opening in said distributing member and adapted to prevent a discharge from said receptacle into said opening, as described.

3. A device of the character described comprising a distributing member, a receptacle discharging on said distributing member, said receptacle having longitudinal slots, a plate secured to said distributing member, a bolt project-ing through said plate and one of said slots and a nut on said bolt, as described.

In testimony whereof I affix my signature in presence of two witnesses.

WILTON E. DARROW.

Witnesses STEPHEN N. BLEWETT, VIRADINE WARNER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

